TB6549FG/PG/HQ
TOSHIBA Bi-CMOS Integrated Circuit
Silicon Monolithic
TB6549FG, TB6549PG,TB6549HQ
Full-Bridge Driver IC for DC Motors
The TB6549FG/PG/HQ is a full-bridge driver IC for DC motors
that uses an LDMOS structure for output transistors.
High-efficiency drive is possible through the use of a MOS
process with low ON-resistance and a PWM drive system. Four
modes, CW, CCW, short brake, and stop, can be selected using
IN1 and IN2.
TB6549FG
Features
•
•
•
•
•
•
•
•
•
Power supply voltage: 30 V (max)
Output current: 3.5 A (max) (FG,PG type)/4.5 A (max) (HQ
type)
Low ON-resistance: 1.0
Ω
(up + low/typ.)
PWM control capability
Standby system
Function modes: CW/CCW/short brake/stop
Built-in overcurrent protection
Built-in thermal shutdown circuit
Package: HSOP20/DIP16/HZIP25
TB6549HQ
TB6549PG
About solderability, the following conditions were confirmed
(1)Use of Sn-37Pb solder Bath
∙solder bath temperature: 230°C
∙dipping time: 5 seconds
∙the number of times: once
∙use of R-type flux
(2)Use of Sn-3.0Ag-0.5Cu solder Bath
∙solder bath temperature: 245°C
∙dipping time: 5 seconds
∙the number of times: once
∙use of R-type flux
HZIP25-P-1.00F
Weight
HSOP20-P-450-1.00: 0.79 g (typ.)
DIP16-P-300-2.54A: 1.11 g (typ.)
HZIP25-P-1.00F: 7.7g (typ.)
Note: This product has a MOS structure and is sensitive to electrostatic discharge. When handling this product,
ensure that the environment is protected against electrostatic discharge by using an earth strap, a conductive
mat and an ionizer. Ensure also that the ambient temperature and relative humidity are maintained at
reasonable levels.
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2017-01-26
TB6549FG/PG/HQ
Block Diagram
Some functional blocks, circuits or constants may be omitted or simplified in this block diagram for explanatory purposes.
V
reg
SB
PWM
OUT2
V
CC
OUT1
5V
Control logic
OSC
Overcurrent
detecting circuit
T
SD
Charge pump circuit
CcpA
CcpB
CcpC
IN1 IN2
S-GND
P-GND
Pin Functions
Pin No.
FG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
FIN
PG
―
1
2
3
―
―
6
7
―
8
9
10
―
11
―
―
14
15
―
16
4,5,12,13
HQ
―
1
2
3
Pin Name
(NC)
CcpA
CcpB
CcpC
(NC)
(NC)
IN1
IN2
(NC)
OUT1
P-GND
OUT2
(NC)
PWM
(NC)
(NC)
SB
V
reg
(NC)
V
CC
S-GND
Functional Description
No Connection
Capacitor connection pin for charge pump A
Capacitor connection pin for charge pump B
Capacitor connection pin for charge pump C
No Connection
No Connection
Control signal input 1
Control signal input 2
No Connection
Output pin 1
Power GND
Output pin 2
No Connection
PWM control signal input pin
No Connection
No Connection
Standby pin
5 V output pin
No Connection
Power supply input pin
GND pin
Input 0/5-V signal
Input 0/5-V signal
―
Connect to motor coil pin
―
Connect to motor coil pin
―
Input 0/5-V PWM signal
―
―
H: Start, L: Standby
Connect a capacitor to S-GND
―
V
CC (ope)
= 10 to 27 V
―
Remarks
―
Connect a capacitor for charge pump
Connect a capacitor for charge pump
Connect a capacitor for charge pump
―
―
―
―
10
11
―
12
14
15
―
16
―
―
23
24
―
25
6, 20
*)
(HQ type) 4, 5, 7, 8, 9, 13, 17, 18, 19, 21, 22 ;N.C.
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2017-01-26
TB6549FG/PG/HQ
Absolute Maximum Ratings
(T
a
= 25°C)
Characteristic
Supply voltage
Symbol
V
CC
I
O
(Pulse)
Output current
I
O
(DC)
Input voltage
FG
Power dissipation
PG
HQ
Operating temperature
Storage temperature
T
opr
T
stg
P
D
Vin
FG, PG
HQ
FG, PG
HQ
Rating
30
3.5
4.5
2.0
3.5
−0.3 to 5.5
2.5
2.7
3.2
40
−20
to 85
−55
to 150
(Note3)
(Note4)
(Note5)
(Note6)
°C
°C
W
V
(Note1)
(Note2)
A
Unit
V
Note1:
Note2:
Note3:
Note4:
Note5:
Note6:
The absolute maximum ratings must be observed strictly. Make sure that no characteristic listed above ever
exceeds the absolute maximum rating.
t = 100 ms
This value is obtained for a 115 mm
×
75 mm
×
1.6 mm PCB mounting with 30% copper area.
This value is obtained for a 50 mm
×
50 mm
×
1.6 mm PCB mounting with 50% copper area.(Glass epoxy
board)
IC only.
Infinite heat sink.
Operating Ranges
(T
a
= 25°C)
Characteristic
Supply voltage
PWM frequency
Symbol
V
CC
f
CLK
Rating
10 to 27
100
Unit
V
kHz
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2017-01-26
TB6549FG/PG/HQ
Electrical Characteristics
(V
CC
= 24 V, T
a
= 25°C)
Characteristic
Symbol
I
CC1
Supply current
I
CC2
I
CC3
I
CC4
Input voltage
Control circuit
Hysteresis
voltage
Input current
V
INH
V
INL
V
IN (HYS)
I
INH
I
INL
VPWMH
VPWML
2
―
1
(Not tested)
V
IN
= 5 V
V
IN
= 0 V
1
Test
Circuit
Test Condition
Stop mode
CW/CCW mode
Short brake mode
Standby mode
Min
―
―
―
―
2
0
―
―
―
2
―
(Not tested)
VPWM = 5 V
VPWM = 0 V
Duty = 50%
3
―
―
―
―
2
2
―
(Not tested)
V
IN
= 5 V
V
IN
= 0 V
I
O
= 0.2 A
I
O
= 1.5 A
V
CC
= 30 V
V
CC
= 30 V
I
O
= 1.5 A
I
O
= 1.5 A
No load
(Not tested)
C
1
= 0.22
μF,
C
2
= 0.01
μF
(Note 2)
(Not tested)
(Note 1)
―
―
―
―
―
―
―
―
―
4.5
―
―
―
Typ.
4
6
4
1
―
―
0.2
50
―
―
―
0.2
50
―
―
―
―
―
0.2
50
―
1.0
1.0
―
―
1.3
1.3
5
50
1
160
Max
8
10
8
2
5.5
0.8
―
75
5
5.5
0.8
―
75
5
100
―
5.5
0.8
―
75
5
1.75
1.75
150
10
1.7
1.7
5.5
―
3
―
μA
V
μA
kHz
μs
V
μA
V
mA
Unit
Input voltage
Hysteresis
voltage
PWM input circuit
Input current
PWM frequency
Minimum clock
pulse width
Input voltage
Standby circuit
Hysteresis
voltage
Input current
3
―
3
V
PWM(HYS)
IPWMH
IPWML
f
PWM
tw(PWM)
V
INSH
V
INSL
V
IN (HYS)
I
INSH
I
INSL
R
on (U + L)
I
L (U)
I
L (L)
V
F (U)
V
F (L)
V
reg
I
SD (OFF)
t
ONG
T
SD
2
―
1
Output ON-resistance
4
Ω
Output leakage current
5
μA
Diode forward voltage
Internal reference voltage
Overcurrent detection offset time
Charge pump rising time
Thermal shutdown circuit operating
temperature
6
4
―
7
―
V
V
μs
ms
°C
Note 1: Include the current in the circuit.
Note 2: C
1
is a capacitor between CcpA and GND. C
2
is a capacitor between CcpB and CcpC.
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2017-01-26
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